Step 4: To simulate an issue and replay events for recovery

Step 1: To enable the simulated issue and send a second API request

1. Sign in to the AWS Lambda console.

2. On the navigation panel, choose Functions.

3. Search for serverlessrepo-fork-example and choose CheckoutFunction.

4. On the fork-example-ecommerce-my-app-CheckoutFunction-ABCDEF... page, in the Environment variables section, set the BUG_ENABLED variable to true and then choose Save.

5. Copy the following JSON to a file named test_event_2.json.

   {
   	   "id": 9917,
   	   "date": "2019-03-26T21:11:10-08:00",
   	   "status": "confirmed",
   	   "customer": {
   	      "id": 56999,
   	      "name": "Marcia Oliveira",
   	      "email": "[e-mail]"
   	   },
   	   "payment": {
   	      "id": 3311,
   	      "amount": 75.00,
   	      "currency": "usd",
   	      "method": "credit",
   	      "card-network": "mastercard",
   	      "card-number": "1234 5678 9012 3456",
   	      "card-expiry": "12/2025",
   	      "card-owner": "Marcia Oliveira",
   	      "card-cvv": "321"
   	   },
   	   "shipping": {
   	      "id": 9900,
   	      "time": 20,
   	      "unit": "days",
   	      "method": "plane"
   	   },
   	   "items": [{
   	      "id": 9993,
   	      "product": 3120,
   	      "name": "Hockey Stick",
   	      "quantity": 1,
   	      "price": 75.00,
   	      "subtotal": 75.00
   	   }]
   	}

6. To send an HTTPS request to your API endpoint, pass the sample event payload as input by executing a curl command, for example:

   curl -d "$(cat test_event_2.json)" https://abcdefghij.execute-api.us-east-2.amazonaws.com/Prod/checkout

   The API returns the following empty response, indicating a successful execution:

   { }

Step 2: To verify simulated data corruption

1. Sign in to the Amazon DynamoDB console.

2. On the navigation panel, choose Tables.

3. Search for serverlessrepo-fork-example and choose CheckoutTable.

4. On the table details page, choose Items and then choose the created item.

   The stored attributes are displayed, some marked as CORRUPTED!

Step 3: To disable the simulated issue

1. Sign in to the AWS Lambda console.

2. On the navigation panel, choose Functions.

3. Search for serverlessrepo-fork-example and choose CheckoutFunction.

4. On the fork-example-ecommerce-my-app-CheckoutFunction-ABCDEF... page, in the Environment variables section, set the BUG_ENABLED variable to false and then choose Save.

Step 4: To enable replay to recover from the issue

1. In the AWS Lambda console, on the navigation panel, choose Functions.

2. Search for serverlessrepo-fork-example and choose ReplayFunction.

3. Expand the Designer section, choose the SQS tile and then, in the SQS section, choose Enabled.

   Note

   It takes approximately 1 minute for the Amazon SQS event source trigger to become enabled.

4. Choose Save.

5. To view the recovered attributes, return to the Amazon DynamoDB console.

6. To disable replay, return to the AWS Lambda console and disable the Amazon SQS event source trigger for ReplayFunction.